CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel and Chrome, specifically in the handling of sensor data from the Embedded Controller (EC) where an unchecked sensor number can lead to out-of-bounds reads and writes in the sensorhub's batch state array. This could potentially allow an attacker to manipulate memory, leading to system instability or unauthorized access to sensitive information. Organizations using Linux or Chrome on systems that rely on sensor data should prioritize addressing this vulnerability to mitigate potential exploitation risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: platform/chrome: sensorhub: Bound the EC-reported sensor number Each EC FIFO event carries an 8-bit sensor number (in->sensor_num). cros_ec_sensorhub_ring_handler() validates the FIFO event count, the per-read count and the ring bound, but not the sensor number, which cros_ec_sensor_ring_process_event() then uses unchecked to index sensorhub->batch_state[] - allocated with only sensorhub->sensor_num entries. A sensor number of sensor_num or larger is an out-of-bounds read and write of batch_state[]. Validate the sensor number in the ring handler, where each event is read from the EC, and drop a malformed event before it is used.